TL;DR
The Broken Stick Triangle: A canonical quantitative trading interview question at intermediate difficulty. Commonly asked at Jane Street, Citadel, Two Sigma, DE Shaw.
By Valenke Exam Prep Team·Last updated 2026-06-01
intermediateGeometric Probability
The Broken Stick Triangle
Asked at: Jane Street, Citadel, Two Sigma, DE Shaw
Problem
A stick of length 1 is broken at two points chosen uniformly at random. What is the probability that the three pieces can form a triangle?
Related concepts
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